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前言振动铸造,是在半连续铸造的基础上发展起来的一种新型铸造方法.不论是半连续铸造机,还是连续铸造机,一般都要求铸造速度越平稳越好,而振动铸造则不同,铸造机是忽停忽走,停顿和下降交替进行.这样铸造时就发出有节奏的咚咚声,对结晶器液面有明显的震动作用,故命名为振动铸造.振动铸造主要适用于铸造时不易成型或表面质量非常不好的铸锭,如铜合金中的锡青铜锭,铝合金中含锂的合金锭等.这些合金在铸造时成品率非常低,尤其是含锂的铝合金,在铸φ162毫米以下的小锭,或200×1200毫米规格的方锭时,成型不但困难,而且由于液体金属在拉口处经常流出,即冒火冒烟,又生成大量的氧化锂,像下雪样满屋漂浮,造成了恶劣的劳动环境,但采用振动铸造后,效果很好,成品率由原来的42%一跃可提到75%以上.用振动铸造铸一般的铝合金,其表面质量也比用常规的铸造方法铸造的合金锭表面质量好,因此振动铸造在东北轻合金加工厂研究所一直使用着.
Foreword Vibration casting is a new type of casting method developed on the basis of semi-continuous casting.Whether it is a semi-continuous casting machine or a continuous casting machine, the casting speed is generally required to be as stable as possible while the vibration casting is different. The casting Machine is suddenly stopped suddenly, pause and fall alternately.This casting is issued when the rhythm of the pound sound, the crystal surface has obvious vibration, so named for the vibration casting. Vibration casting is mainly applied to the casting is not easy Forming or surface quality of the ingot is not good, such as bronze ingot bronze ingot, aluminum alloy ingot containing lithium, etc. These alloys in the casting yield is very low, especially lithium-containing aluminum alloy, casting φ162 mm below the ingot, or 200 × 1200 mm size ingot, the molding is not only difficult, but also because the liquid metal often out of the mouth of the mouth, that is, smoke and smoke, but also generate a lot of lithium oxide, like snow-like full Floating house, resulting in a harsh working environment, but the use of vibration casting, the effect is very good, yield 42% jump from the original mention of more than 75%. Vibration casting ordinary aluminum alloy, the surface quality than With conventional casting Good casting alloy ingot surface quality of the law, and therefore vibration casting has been using in the Northeast Light Alloy Factory Institute.